36" 321 Stainless Steel Tube/Pipe
36" 321 Stainless Steel Tube/Pipe
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321 Stainless Steel Pipe
Premium China 321 stainless steel pipe manufacturer offering high-temperature resistance, seamless precision, and compliance with international standards. Our 321 stainless steel pipes are designed for industries that demand excellent heat resistance, high durability, and corrosion resistance in harsh environments. Whether you require seamless or welded pipes, we provide high-quality solutions for aerospace, petrochemical, food processing, and power generation applications. Our pipes are engineered to provide reliable performance even in the most extreme conditions, ensuring long-lasting and safe operations for critical systems.
Technical Specifications
| Property | Details |
|---|---|
| Material Standard | ASTM A312/A213, ASME SA312/SA213 |
| Grade | 321 Stainless Steel (UNS S32100) |
| Titanium Content | Min. 5x Carbon Content for Stabilization |
| Carbon Content | ≤0.08% |
| Corrosion Resistance | Excellent in acidic, chloride, and high-temperature environments |
| Temperature Range | -425°F to 1500°F (-254°C to 816°C) |
| Surface Finish | Annealed, Pickled, or Polished |
Available Sizes
| Type | Outer Diameter (OD) | Wall Thickness | Length |
|---|---|---|---|
| Seamless Round Pipe | 0.5" – 24" (12.7–610 mm) | 0.028" – 2" (0.7–50 mm) | 20ft (6m) or Custom |
| Welded Pipe | 1/8" – 48" (3–1219 mm) | 0.035" – 0.5" (0.9–12.7 mm) | Customizable |
Key Attributes & Advantages
🔥 High-Temperature Stability: The 321 stainless steel alloy contains titanium, which enhances its ability to withstand high temperatures. Ideal for use in exhaust systems, heat exchangers, boilers, and other high-heat applications where standard stainless steels may fail. 321 stainless steel maintains its structural integrity in extreme environments, making it the material of choice for industries requiring durable, high-performance piping solutions.
🛡️ Oxidation Resistance: 321 stainless steel offers superior resistance to oxidation, which is crucial for environments where cyclic heating and cooling processes are common. This feature significantly improves the longevity and reliability of China 321 stainless steel pipe, reducing maintenance needs and downtime in high-temperature systems.
⚙️ Seamless Precision: The 321 stainless steel seamless round pipe ensures uniform wall thickness, tight dimensional tolerance, and leak-proof performance. Seamless pipes are ideal for high-pressure applications, providing enhanced strength and durability without the risk of weld defects. This feature is essential for industries like aerospace, petrochemical refining, and power generation, where system integrity is critical.
🌍 Global Compliance: Our China 321 stainless steel pipe adheres to internationally recognized standards, including ASTM, EN, DIN, and JIS. This compliance ensures that our pipes can be used in various countries and industries while meeting local regulatory and quality requirements. Additionally, all of our 321 stainless steel products undergo rigorous testing to ensure they meet or exceed the necessary specifications for safe and reliable use.
💪 Mechanical Strength: 321 stainless steel provides excellent mechanical properties, including high creep resistance and toughness, even at elevated temperatures. These qualities make it suitable for applications subjected to prolonged thermal exposure and mechanical stress, such as pressure vessels, boilers, and heat exchangers.
Applications
Our 321 stainless steel pipe is widely used in industries and applications that require superior heat resistance, corrosion resistance, and mechanical strength. Some of the key sectors include:
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Petrochemical refining: Used in the construction of reactors, piping systems, and heat exchangers where high temperatures and corrosive environments are present.
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Aerospace components: Ideal for exhaust systems and structural components that need to perform reliably at high altitudes and extreme temperatures.
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Food processing equipment: Suitable for high-temperature food processing machinery, ensuring the durability and longevity of pipes used in hot water systems and pasteurization.
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Automotive exhaust systems: 321 stainless steel is commonly used in exhaust systems due to its high-temperature stability and resistance to oxidation, ensuring long-lasting performance.
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Power generation pipelines: Widely used in the construction of pipelines for power plants, where high temperatures and corrosion resistance are crucial for safe operation.
Manufacturing Process
| Stage | Process Description |
|---|---|
| 1. Raw Material | Precision-cut stainless steel 321 pipe billets sourced from trusted suppliers. |
| 2. Forming | Hot extrusion or cold drawing methods are employed to produce seamless pipes. |
| 3. Heat Treatment | Solution annealing ensures the pipe retains its corrosion resistance and structural strength. |
| 4. Surface Treatment | Options include pickling, passivation, or polishing to enhance surface finish and durability. |
| 5. Quality Control | Non-destructive testing methods, such as ultrasonic testing, hydrostatic pressure checks, and chemical analysis, ensure the pipe meets stringent quality standards. |
Why Choose Our 321 Stainless Steel Pipes?
✅ Custom Sizes: We offer a variety of sizes for both seamless and welded 321 stainless steel pipes, including custom diameters and wall thicknesses. Our flexible manufacturing processes allow us to meet the exact specifications required by your project, whether you need pipes for complex aerospace systems or heavy-duty industrial pipelines.
✅ Competitive Pricing: As a direct manufacturer of China 321 stainless steel pipe, we offer factory-direct pricing on all our products. This allows us to pass on significant savings to our customers without compromising on quality.
✅ Certifications & Traceability: Our 321 stainless steel pipes come with full documentation, including Mill Test Certificates (MTC), ISO 9001 quality control documentation, and optional PED/TUV certifications for compliance with European standards.
✅ Global Supply Chain: We offer efficient global shipping from our certified manufacturing facilities, ensuring that your order reaches you on time and in excellent condition, no matter where you're located.
✅ Reliable Performance: With years of experience in manufacturing high-quality stainless steel pipes, we ensure that each batch of 321 stainless steel pipe meets or exceeds international standards for corrosion resistance, mechanical strength, and high-temperature performance.
